Remove PHIElimination's private copy of SkipPHIsAndLabels.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120918 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 29 deletions

diff --git a/lib/CodeGen/PHIElimination.h b/lib/CodeGen/PHIElimination.h
index 6fd2662940..60effc2176 100644
--- a/lib/CodeGen/PHIElimination.h
+++ b/lib/CodeGen/PHIElimination.h
@@ -69,35 +69,6 @@ namespace llvm {
                                                     MachineBasicBlock &SuccMBB,
                                                     unsigned SrcReg);
 
-    // SkipPHIsAndLabels - Copies need to be inserted after phi nodes and
-    // also after any exception handling labels: in landing pads execution
-    // starts at the label, so any copies placed before it won't be executed!
-    // We also deal with DBG_VALUEs, which are a bit tricky:
-    //  PHI
-    //  DBG_VALUE
-    //  LABEL
-    // Here the DBG_VALUE needs to be skipped, and if it refers to a PHI it
-    // needs to be annulled or, better, moved to follow the label, as well.
-    //  PHI
-    //  DBG_VALUE
-    //  no label
-    // Here it is not a good idea to skip the DBG_VALUE.
-    // FIXME: For now we skip and annul all DBG_VALUEs, maximally simple and
-    // maximally stupid.
-    MachineBasicBlock::iterator SkipPHIsAndLabels(MachineBasicBlock &MBB,
-                                                MachineBasicBlock::iterator I) {
-      // Rather than assuming that EH labels come before other kinds of labels,
-      // just skip all labels.
-      while (I != MBB.end() && 
-             (I->isPHI() || I->isLabel() || I->isDebugValue())) {
-        if (I->isDebugValue() && I->getNumOperands()==3 && 
-            I->getOperand(0).isReg())
-          I->getOperand(0).setReg(0U);
-        ++I;
-      }
-      return I;
-    }
-
     typedef std::pair<unsigned, unsigned> BBVRegPair;
     typedef DenseMap<BBVRegPair, unsigned> VRegPHIUse;